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H. SILVER. GUPOLA VENHLATOR FOR BARNS AND THE LIKE.

APPLICATION FILED NOV.15.1918- 1312586. Patented Aug.12,1919.

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H. SILVER. CUPDLA VENTILATOR FOR BARNS AND THE UKE. APPLICATION man NOV-15.!9IB.

Paten ted Aug. 12, 1919;

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GUPOLA-VENTILATO'R FOB BARN S THE LIKE.

Application filed November 15, 1918.

To all whom it may concern:

; Be itknown that I, HERMAN SILVER, a citizen jof the United States, residing at Minnea olispin. the county of Hennepin and State o Minnesota, have invented certain newranduseful Improvements in Cupola- Ventilators for Barns and the like; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an extremely simple and highly efficient ventilating cupola for barns and the like; and, to this end, it consists of the novel devices and combinations of devices hereinafter described and defined in the claim.

In the accompanying drawings, which illustrate the invention, like characters inclients like parts throughout the several views.

Referring to the drawings,

Figure 1 is a view of the improved ventilating cupola partly in elevation and partly in central vertical section;

Fig. 2 is a horizontal section taken on the line 2-2 of Fig. 1;

Fig. 3 is a view partly in plan and partly in horizontal section ta en on the line 3-3 of Fig. 1;

Fig. 4 is a fragmentary detail view showing one of the brackets from which the inner band is directly su ported from the flue and from which brac ets the cap is indirectly supported; and

Fig. 5 is a detail view partly in elevation and partly in vertical section taken on the line 5-5 of Fig. 4:.

The entire cupola is preferably constructed from heavy galvanized metal and comprises a rectangular base 6, fine 7, cap 8, and inner and outer concentric bands 9 and 10, respectively. The base 6 has, at its upper end, a wooden reinforcing frame 11 to ive the same the necessary rigidity and which base may be cut to fit roofs of different pitch. The flue 7 is made in upper and lower sections, the latter of which is square at its lower end and caps a flange 12 on the base 6 to afford a rain-proof joint therebetween. The upper end of the lower flue section is round and is rigidly secured to the lower end of the cylindrical upper section of said flue by a weather-tight joint 13.

Circumferentially spaced radial brackets Specification of Letters Patent.

Patented Aug. 12, 1919.

Serial No. 262,650.

14 rigidl connect the inner band 9 to the flue 7. he vertex of the band 9 is turned toward the flue 7 and spaced apart there from to'afl'ord an air passa way therebetween. As shown, the brac ets 14 are in the form of flat plates set vertically edgewise and have their ends bent laterally to afford inner flanges 16 and outer flanges 17. The inner flanges 16 bear directly against the outer face of the flue 7 and are secured thereto by rivets 18. The outer ends of the brackets 14 are notched to receive the V-shaped inner band 9, and the outer flanges 17 follow the contours of the outer ends of the inner band 9, directly to engage said band, and are detachably secured thereto by bolts 19. By reference to Fig. 1, it will be noted that the u per edges of the flue 7 and the inner ban 9 are in substantially the same horizontal lane.

The cap 8 is.vert1cally spaced above the flue 7 to afford a horizontal air passageway therebetween, and is supported from said flue by a plurality of circumferentially spaced braces 20, in the form of horizontally disposed U-shaped members. The rongs of the braces 20 extend inward and t eir free end portions are bent into diverging relation, so that the lower prongs bear directly upon the upper portions of the flan es 17, and are detachably secured thereto %y the respective bolts 19, and the upper prongs of said braces extend within the cap 8 and are detachably secured thereto by bolts 21. The outer band 10 is detachably secured to the transverse portions of the braces 20 by bolts 22 and the diameter thereof is considerably greater than the diameter of the inner band 9, so as to afford a vertical air passageway that intersects the horizontal air passageway between the flue and cap. By reference to Fig. 1, it will be noted that the band 10 extends below the upper horizontal edge of the band 9 and above the lower horizontal ed 'e of the cap 8.

The cap 8 is of conical shape and it will be noted that the same pro ects considerably outward of the flue to prevent rain and snow from entering the same. Within the cap 8, is secured an inverted relatively fiat conically formed bottom or deflecting plate 23. An annular screen 24 extends between the flue 7 and cap 8 to prevent birds, bats, etc., from entering the cupola. Downward air currents will pass between the cap 8 and outer band 10 intersecting the horizontal air passageway between the flue and cap and also through the two vertical air passageways formed by the two bands 9 and 10, as indicated by arrows at the left in Fig. 1. Upward currents of air will move in re verse directions from those just described and, as indicated by arrows at the left in Fig. 1. The cap bottom 23 will deflect the ventilating draft, through the cupola, outward, in all directions, and prevent the forming of an air pocket in the cap.

Foul air in the building will pass u ward through the base 6 and flue 7 and stri e the conical bottom 23 of the ca 8 and be deflected thereby in all directlons outwardly and upwardly between the ca 8 and band 10. Upward air currents stri 'ng the outer surface of the flue 7 will pass upward through the air passageway 15 and between the cap 8 and band 10, commingling with the foul air from the flue, and thereby cause a forced draft in said flue. Ob viously the upper and outwardly diverging portion of the band 9 will deflect upward outside air currents, striking the same,

into substantially parallel movement with the foul air discharging from the flue, and

Bhus prevent the same from entering the What I claim is A ventilating cupola having a flue, a ca and inner and outer bands, said inner ban being V-shaped in cross section with its vertex spaced apart from the flue to afford an air passageway therebetween and with its flanges diverging from said flue, radial brackets secured to the flue and having in their outer ends V-shaped notches to receive the inner band which is secured thereto, and brackets supporting the outer band from the cap and inner band.

In testimony whereof I aflix my signature in presence of two witnesses.

HERMAN SILVER.

Witnesses CLARA DEMAREST, HARRY D. KILGOBE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 0! Patents, Washington, D. 0." 

